X-Mozilla-Keys:                                                                                 

David Bennett wrote:

I see by your tag line that you run rotary engines.  That's better than I could
hope for.

I gues your post means you have tried to isolate the oil injection system from
the crankcase oil and have been unsuccessful?  Do you know if there a
significant amount of crankcase oil burnt? In other words if I can rig a
separate oil injection system could I be free to run whatever oil I wanted in
the crank (mobil 1)?

DAvid

I think that was the conclusion we came up with. There are additives in
Mobil 1 that don't burn very well (we think) and that is the reason
Mazda does not recommend synthetics.

Paul Lamar

David Bennett wrote:

re: Mobil 1

Actually I am told it was their choice of base not an additive.   Since burning
cleanly wasn't a design criteria they used a base that they considered superior.  On
the other hand, Mobil 1's 2 cycle synthetic burns very cleanly.

We think burning cleanly for apex seal oil is crucial to the life of the
rotary.
I think Mazda engines would last a lot longer if Mazda addressed this
issue
in their car engines. Perhaps they were worried that people would 
balk at keeping a separate tank of apex seal lube oil. Maybe
at the time they under estimated the importance of clean burning apex
seal
oil. The rotors on most engines taken out of cars are coated with
junk and the apex seals are stuck in the slots. 

Paul Lamar


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